The ABB S2C‑S/H6R is a signal/auxiliary contact accessory designed to install on the right side of compatible miniature circuit breakers (MCBs) and residual current devices (RCCBs/RCBOs) from ABB’s System Pro M Compact series. It provides a remote indication or signaling function of the switching status (ON/OFF/trip) of the protective device by adding a small contact block that changes state in sync with the breaker’s main contacts. This accessory improves monitoring and control in electrical distribution boards, automation panels, and safety systems.